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Daviboy's Avatar
 
Join Date: Jul 2008
Location: Cape Town, South Africa
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Rebuilding Mechanical Chain Tensioner

Guys I know I am going to take serious flak for asking this question. However I have about $4000 in to a rebuild and at this time do not have the funds for a Carrera tensioner upgrade kit (unless anyone wants to donate one to the cause) So my question is this has anyone rebuilt their mechanical tensioners and if so whats involved. Is it worth buying the Chain Tensioner Slip Prevention Collars if I go this route. I know I should really wait till I can afford the pressure fed.....

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Davy

82 911 SC Targa Sold
12 Audi A5 Sportback 3.0 TDI Quattro
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Old 06-24-2010, 10:27 PM
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Porsche used to sell a rebuild kit for chain tensioners. Not sure now, but it is/was a service procedure. Check the usual parts places.

It's pretty simple. Remove internal snap ring, remove parts, clean, install replacement parts, re-assemble, bleed tensioner, then reinstall.

Sherwood
Old 06-24-2010, 11:24 PM
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911pcars by bleed the tensioner do you mean once new parts installed fill the tensioner body with oil replace cap, snap ring then compress plunger bleeding oil through the side port?
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82 911 SC Targa Sold
12 Audi A5 Sportback 3.0 TDI Quattro
03 996 C4S
Old 06-24-2010, 11:37 PM
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Repair kit for tensioners 911-105-901-01

2 required.

andy
Old 06-24-2010, 11:43 PM
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ajwans they are NLA from host do you know anywhere else to buy them?
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Davy

82 911 SC Targa Sold
12 Audi A5 Sportback 3.0 TDI Quattro
03 996 C4S
Old 06-24-2010, 11:55 PM
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Quote:
Originally Posted by Daviboy View Post
911pcars by bleed the tensioner do you mean once new parts installed fill the tensioner body with oil replace cap, snap ring then compress plunger bleeding oil through the side port?
You cannot reassemble with oil in the body. Lightly lube, then reassemble. Submerge the tensioner in a container of clean engine oil, then work the piston/plunger up and down to expel all air. At this point, the piston/plunger will be rigid. Use a bench vise to slightly compress the plunger prior to installing in the engine.

Opps. I haven't done this for awhile. I recall there's a breather port on the side of the tensioner. Remove stopper bolt to bleed the tensioner. Reinstall the bolt while submerged.

If our host doesn't carry the rebuilding kit, try ******** or do a search on the internet.

Sherwood

Last edited by 911pcars; 06-25-2010 at 12:55 AM..
Old 06-25-2010, 12:52 AM
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I bought mine through partsquick.com which seem to be no longer in business,
shame, they were cheap.

I believe these are still available, just not through PP.

This site might help you:

::911 TENSIONERS::::

I also found a corkscrew handy for removing the inner
O-ring.

andy
Old 06-25-2010, 02:52 AM
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Just picked up two kits on e-bay for $40......thanks all and ajwans I found that site earlier it is most helpful

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82 911 SC Targa Sold
12 Audi A5 Sportback 3.0 TDI Quattro
03 996 C4S
Old 06-25-2010, 03:38 AM
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